./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b13955a-a4ca-440b-a8a9-04caefef583b/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b13955a-a4ca-440b-a8a9-04caefef583b/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b13955a-a4ca-440b-a8a9-04caefef583b/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b13955a-a4ca-440b-a8a9-04caefef583b/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b13955a-a4ca-440b-a8a9-04caefef583b/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b13955a-a4ca-440b-a8a9-04caefef583b/bin/uautomizer-verify-uTZkv6EMXl --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0c11dfbc24d8e2936a0720b93d6e580e096b076c7149ef4cbc8369f1ef818941 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:18:12,943 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:18:13,068 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b13955a-a4ca-440b-a8a9-04caefef583b/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-12 02:18:13,075 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:18:13,076 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:18:13,112 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:18:13,113 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:18:13,114 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:18:13,115 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:18:13,120 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:18:13,121 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:18:13,121 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:18:13,122 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:18:13,124 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:18:13,124 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:18:13,125 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:18:13,125 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:18:13,125 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:18:13,126 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:18:13,126 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:18:13,127 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:18:13,127 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:18:13,128 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:18:13,128 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:18:13,128 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:18:13,129 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:18:13,130 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:18:13,130 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:18:13,131 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:18:13,131 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:18:13,132 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:18:13,144 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:18:13,144 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:18:13,144 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:18:13,145 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:18:13,145 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:18:13,145 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:18:13,145 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:18:13,146 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:18:13,146 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b13955a-a4ca-440b-a8a9-04caefef583b/bin/uautomizer-verify-uTZkv6EMXl/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b13955a-a4ca-440b-a8a9-04caefef583b/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0c11dfbc24d8e2936a0720b93d6e580e096b076c7149ef4cbc8369f1ef818941 [2023-11-12 02:18:13,406 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:18:13,432 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:18:13,435 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:18:13,436 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:18:13,437 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:18:13,439 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b13955a-a4ca-440b-a8a9-04caefef583b/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-1.c [2023-11-12 02:18:16,439 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:18:16,926 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:18:16,927 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b13955a-a4ca-440b-a8a9-04caefef583b/sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-1.c [2023-11-12 02:18:16,953 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b13955a-a4ca-440b-a8a9-04caefef583b/bin/uautomizer-verify-uTZkv6EMXl/data/c33b89917/7bcda9890e0b483fbab32adbb57c75f0/FLAG04e744d6c [2023-11-12 02:18:16,970 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b13955a-a4ca-440b-a8a9-04caefef583b/bin/uautomizer-verify-uTZkv6EMXl/data/c33b89917/7bcda9890e0b483fbab32adbb57c75f0 [2023-11-12 02:18:16,972 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:18:16,974 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:18:16,975 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:18:16,975 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:18:16,981 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:18:16,982 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:18:16" (1/1) ... [2023-11-12 02:18:16,982 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@702a33fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:16, skipping insertion in model container [2023-11-12 02:18:16,983 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:18:16" (1/1) ... [2023-11-12 02:18:17,092 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:18:17,296 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b13955a-a4ca-440b-a8a9-04caefef583b/sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-1.c[1870,1883] [2023-11-12 02:18:17,982 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:18:18,009 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:18:18,020 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"/tmp/aaaa/ctm.ok3.i","-S") [42] [2023-11-12 02:18:18,025 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b13955a-a4ca-440b-a8a9-04caefef583b/sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-1.c[1870,1883] [2023-11-12 02:18:18,283 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:18:18,341 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:18:18,342 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:18 WrapperNode [2023-11-12 02:18:18,343 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:18:18,344 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:18:18,345 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:18:18,345 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:18:18,353 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:18" (1/1) ... [2023-11-12 02:18:18,446 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:18" (1/1) ... [2023-11-12 02:18:18,689 INFO L138 Inliner]: procedures = 99, calls = 2816, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 8541 [2023-11-12 02:18:18,690 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:18:18,691 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:18:18,691 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:18:18,691 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:18:18,701 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:18" (1/1) ... [2023-11-12 02:18:18,701 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:18" (1/1) ... [2023-11-12 02:18:18,814 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:18" (1/1) ... [2023-11-12 02:18:18,814 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:18" (1/1) ... [2023-11-12 02:18:18,986 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:18" (1/1) ... [2023-11-12 02:18:19,079 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:18" (1/1) ... [2023-11-12 02:18:19,112 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:18" (1/1) ... [2023-11-12 02:18:19,137 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:18" (1/1) ... [2023-11-12 02:18:19,176 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:18:19,178 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:18:19,178 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:18:19,178 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:18:19,179 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:18" (1/1) ... [2023-11-12 02:18:19,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:18:19,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b13955a-a4ca-440b-a8a9-04caefef583b/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:18:19,219 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b13955a-a4ca-440b-a8a9-04caefef583b/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:18:19,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b13955a-a4ca-440b-a8a9-04caefef583b/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:18:19,271 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2023-11-12 02:18:19,272 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2023-11-12 02:18:19,272 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2023-11-12 02:18:19,272 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2023-11-12 02:18:19,272 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 02:18:19,272 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2023-11-12 02:18:19,273 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2023-11-12 02:18:19,273 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2023-11-12 02:18:19,273 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2023-11-12 02:18:19,273 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2023-11-12 02:18:19,273 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2023-11-12 02:18:19,275 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2023-11-12 02:18:19,275 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2023-11-12 02:18:19,275 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2023-11-12 02:18:19,275 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2023-11-12 02:18:19,275 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2023-11-12 02:18:19,276 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2023-11-12 02:18:19,276 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2023-11-12 02:18:19,276 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2023-11-12 02:18:19,276 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2023-11-12 02:18:19,276 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2023-11-12 02:18:19,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:18:19,277 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-11-12 02:18:19,277 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-11-12 02:18:19,277 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2023-11-12 02:18:19,278 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2023-11-12 02:18:19,278 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2023-11-12 02:18:19,278 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2023-11-12 02:18:19,278 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2023-11-12 02:18:19,279 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2023-11-12 02:18:19,279 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2023-11-12 02:18:19,279 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2023-11-12 02:18:19,280 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2023-11-12 02:18:19,280 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2023-11-12 02:18:19,281 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2023-11-12 02:18:19,281 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2023-11-12 02:18:19,281 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:18:19,281 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2023-11-12 02:18:19,281 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2023-11-12 02:18:19,282 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2023-11-12 02:18:19,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2023-11-12 02:18:19,282 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2023-11-12 02:18:19,282 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2023-11-12 02:18:19,283 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2023-11-12 02:18:19,283 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2023-11-12 02:18:19,283 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2023-11-12 02:18:19,283 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2023-11-12 02:18:19,283 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2023-11-12 02:18:19,283 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2023-11-12 02:18:19,284 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2023-11-12 02:18:19,284 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2023-11-12 02:18:19,284 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2023-11-12 02:18:19,284 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2023-11-12 02:18:19,284 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2023-11-12 02:18:19,284 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2023-11-12 02:18:19,285 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2023-11-12 02:18:19,285 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2023-11-12 02:18:19,285 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2023-11-12 02:18:19,285 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2023-11-12 02:18:19,285 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2023-11-12 02:18:19,285 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2023-11-12 02:18:19,285 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2023-11-12 02:18:19,286 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2023-11-12 02:18:19,286 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2023-11-12 02:18:19,286 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2023-11-12 02:18:19,286 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2023-11-12 02:18:19,287 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2023-11-12 02:18:19,287 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2023-11-12 02:18:19,288 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2023-11-12 02:18:19,288 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2023-11-12 02:18:19,288 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2023-11-12 02:18:19,289 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2023-11-12 02:18:19,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2023-11-12 02:18:19,289 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2023-11-12 02:18:19,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2023-11-12 02:18:19,289 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2023-11-12 02:18:19,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2023-11-12 02:18:19,290 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2023-11-12 02:18:19,290 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2023-11-12 02:18:19,290 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2023-11-12 02:18:19,290 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2023-11-12 02:18:19,291 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2023-11-12 02:18:19,291 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2023-11-12 02:18:19,291 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2023-11-12 02:18:19,291 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2023-11-12 02:18:19,291 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2023-11-12 02:18:19,291 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2023-11-12 02:18:19,292 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2023-11-12 02:18:19,292 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2023-11-12 02:18:19,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:18:19,293 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2023-11-12 02:18:19,293 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2023-11-12 02:18:19,293 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:18:19,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:18:19,856 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:18:19,859 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:18:46,465 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:18:46,501 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:18:46,501 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-12 02:18:46,507 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:18:46 BoogieIcfgContainer [2023-11-12 02:18:46,507 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:18:46,512 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:18:46,512 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:18:46,515 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:18:46,516 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:18:16" (1/3) ... [2023-11-12 02:18:46,517 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d3851dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:18:46, skipping insertion in model container [2023-11-12 02:18:46,518 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:18" (2/3) ... [2023-11-12 02:18:46,520 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d3851dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:18:46, skipping insertion in model container [2023-11-12 02:18:46,520 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:18:46" (3/3) ... [2023-11-12 02:18:46,521 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_ctm.3-1.c [2023-11-12 02:18:46,542 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:18:46,542 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:18:46,656 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:18:46,663 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2fc2f40b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:18:46,663 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 02:18:46,680 INFO L276 IsEmpty]: Start isEmpty. Operand has 2465 states, 2113 states have (on average 1.4803596781826787) internal successors, (3128), 2137 states have internal predecessors, (3128), 306 states have call successors, (306), 44 states have call predecessors, (306), 44 states have return successors, (306), 296 states have call predecessors, (306), 306 states have call successors, (306) [2023-11-12 02:18:46,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-11-12 02:18:46,704 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:18:46,705 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:18:46,705 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:18:46,709 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:18:46,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1381223433, now seen corresponding path program 1 times [2023-11-12 02:18:46,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:18:46,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482636125] [2023-11-12 02:18:46,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:18:46,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms